Swimming at the 2005 World Aquatics Championships – Women's 50 metre freestyle

The Women's 50m Freestyle event at the 11th FINA World Aquatics Championships was swum 30 – 31 July 2005 in Montreal, Quebec, Canada. Preliminary heats and Semifinal heats were 30 July; the final was 31 July.

At the start of the event, the existing World (WR) and Championships (CR) records were:
 * WR: 24.13, Inge de Bruijn (Netherlands) swum 22 September 2000 in Sydney, Australia
 * CR: 24.45, Inge de Bruijn (Netherlands) swum 28 July 2001 in Fukuoka, Japan